US 11,874,536 B2
Polarizing plate and optical display device comprising same
Jeong Ho Lee, Suwon-si (KR); and Dong Ho Wee, Suwon-si (KR)
Assigned to Samsung SDI Co., Ltd., Yongin-si (KR)
Appl. No. 17/638,645
Filed by SAMSUNG SDI CO., LTD., Yongin-si (KR)
PCT Filed Aug. 27, 2020, PCT No. PCT/KR2020/011495
§ 371(c)(1), (2) Date Feb. 25, 2022,
PCT Pub. No. WO2021/040434, PCT Pub. Date Mar. 4, 2021.
Claims priority of application No. 10-2019-0107627 (KR), filed on Aug. 30, 2019; and application No. 10-2020-0106611 (KR), filed on Aug. 24, 2020.
Prior Publication US 2022/0299821 A1, Sep. 22, 2022
Int. Cl. G02F 1/1335 (2006.01); G02B 1/04 (2006.01); G02B 5/30 (2006.01)
CPC G02F 1/133528 (2013.01) [G02B 1/04 (2013.01); G02B 5/305 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A polarizing plate comprising:
a polarizer; and
a pattern layer disposed on an upper surface of the polarizer,
wherein the pattern layer comprises a first resin layer, the first resin layer being formed on a lower surface thereof with at least one engraved pattern having a lateral side, the lateral side having a first facet and a second facet consecutive to the first facet, the first facet and the second facet having different base angles with respect to a maximum width of the engraved pattern and satisfying Relations 1 and 2:
θ1>θ2,  [Relation 1]
wherein Relation 1, θ1 denotes a base angle of the first facet, θ2 denotes a base angle of the second facet, about 70°≤θ1≤about 90°, about 0°<θ2<about 90°; and
about 0.5≤h1/(h1+h2)<about 1.0,  [Relation 2]
wherein Relation 2, h1 denotes a projection height of the first facet projected on a maximum height of the engraved pattern and h2 denotes a projection height of the second facet projected on the maximum height of the engraved pattern.